Knitting-machine.



W QZ/M, y

A. E. STEWART.

KNITTING MACHINE.

APPLICATION FILED MAI/5.19m.

ITIN/e 770%@ 7".

wwf JM Pateuhted Aug. 31, 1915.

A. E. STEWART.

KNITTING MACHINE. APPLICATION FILED MAY5,1913.

' Patented Aug. 31, 1915.

2 SHEETS-SHEET 2.

"fwn "Win Vw, iwi i im fr in er i rise ACBERT E. STEVJRT, OF FRANKLIN', 'NEW' HAMPSIRE, ASSIGNOR TO ACME KNTTIilG MACHINE (if. NEEDLE COMPANY, A. CORPORATION OF NEW' HAMPSHIRE.

KNTTING-MACHINE.

Application niet; May 5, 1913.

7 willem/.lt moy concern:

't known that l, ALBERT E. Sammie-r. i"ranizlin, .in the county ot llierrimack and State oi New Hampshire, have invented certain new and useful improvements in linitting-liiachines, ot which the following is a speciiication, reference being had-to the accompanying' drawings, forming part thereof.

This invention has reference to improvements in knitting machines and relates par ticularly to improvements therein whereby yarns or threads may be cut at or about the time the knitting operation reaches a point at which, heretofore, such yarn ordinarily has been iioated. Y

Une object et the invention is to so construct knitting machine having any ordi.- nangp, and well known yarn chang-ing devices that at or about the operation of changing` the yarn, particuiarly during` the knitting ot the tout and sole ot stocking either ot .the yarns may be engaged and cut so that no iioating of the yarn is necessary, the yarn heretofore used in floating is saved, and the subsequent operation, heretofore employed of cutting` out the floated yarn is avoided.

Another object -oi the invention is to improve the construction of yarn or thread cutters i'or knitting' machines.

Another object ot the invention is to provide improved yarn or thread cutters respectively tor any two yarns which it is desired respectively to cut at certain points in f the. operation oit the machine and to operate said yarn or thread cutters independently.

Other objects oi the invention will appear ,from the following description.

ibe invention consists in such novel tea tures ot' .construction and combination of parts as shall hereinafter be more tully described and pointed out in the clain'is.

Figure l, represents a vertical sectional view of the latch ring- 'portions oi a knitting` machine illustrating.,r this invention. lilig. 2, represents a plan view of the same. Fig. 3, represents a.- sectional view of parts taken on line 3 3 Fig'. 25, looking` in the direction indicated by the arrows oi? said line. Fig. 4,

'represents a diagrammatic view to illustrate the relative positions'ot some oi the parts. Fig. 5, represents a detail plan view ofi parts oi one ci the yarn engaging and cutting dew vices.

Specification of Letters Patent.

Fatenterl Aug. 3i. ii.

Serial No. 765,429.

Similar characters of reference designate corresponding parts throughout.

'As shown in the drawn] in its preferred iorln, represents the latch ring which isA supported by the post 6 mounted on the cam ring, of which a fragment 'i is shown. Post G has the shaft S on which are mounted to swing,` the yarn change arms of which but two, 9 and l0, are shown in the drawings, to avoid confusion; Arm. 9 has the usual guide 12 for the yarn adapted to forni the high splice and reinforced sole and arm i() has the guide il carrying one of several yarns used in makinpv the stocking. arms 9 and l0- are operated by any usual mechanism in any well knownlmanner to, at times, carry the respective yarns passing through their guides to positions at which said yarns may be engaged bytheneedles N, N ot'the usual needle cylinder, .and at other times to move or withdraw said yarns i'roni such positions.

Mounted in the post G or' the latch ring is the shait lei on which are pivotally mounted the bell crank levers l5 and 1G adapted to be actuated at times by means of tle members 17 and 18, lthe .bell crank lever ill' having the retracting spring- 'i9 one end owhich is se cured in the collar 2O iined to said shaft ifi-l. Said members l? and 18 are intermittently actuated at or about the time at which their related yarn carriers 9 and l0 are operated. to withdraw their resijiective yarn guides il' and l2 from the points at which said guides deliver yarn 'to the needles, by the usual cams C and (l, C on the drive shaft rl which is the drive shai't tor the needle cylinder.

Located within the laichiring and supported by the goose neck 23 is the plate Q11, with reference to which plate 2iA the needle cylinder, vin some machines, is relatively movable. This plate 2i has the upwardly curving' thread engaging arm 25 adapted to engage the main thread ll and ruido said `ihread into the slot 26 or said plate duringrv whilel at its lower portion said sleeve 2'? has;

the arm 30 having at its outer end the spring opened pivoted yarn carrpuf,r and cutting lola-des 31 and ot which the latter has the These y cam extension 33, 34 which coperate with the Way 35 when the free endof arm. 30 is swung toward the' center of plate 24, to close blade 32 over blade 31 to, ultimately, cut ayarn' or thread engaged therebetween. Normally'these blades 31 and`32 are located as shown; in Fig. 2 in full lines, so that the arm is always raised.

main thread B guided along slot 264 will Y enter between said blades.

Mounted on the plate 24 above cam 36 is the yarn guide plate 37 which extends to the .edge of slot 26 -and Ahas the superposed spring yarn clip 38. Pivotally mounted in the arm 39 vextending upward from cam 3G is the yarn holder' arm 40 which is adapted when depressedby its spring 41v to hold a positioned yarn' against the block 42, on plate 24, as-shown, to hold said yarn B under -a tension between the point at which On the slide 46 is the pin 47 which is connected by a spring with the guide 48.` Said Aslide at its forward end, is furnished'with the hook 49 for engaging the splice thread or yarn A and has the exterior upwardly extending members 4G furnished with the stops 50 and 51. Slide 48 is operated by a bell crank lever 52 pivotally mounted onpart 53 of plate 24 and actuated to draw the splice yarn A by means of hook 49 to a position to be cut by means of the rod 54 connected with said bell crank lever .and with the bell crank lever 15K.

Fixed at theforward end of guide 48 is the cutter jaw 55 and pivotally mounted on said vguide is. the coperating jaw 5G having the arm 57 uwhich extendsbetween and -is actuated by the stops or lips 50, 51 on said slide 46 to effect the closing of said jaw' 5G after the hook 49 has been partially retracted, the additional movement of said slide 46 and its hook being permitted by the space .between stops 50 and 51 being greater than the diameter of the arm 57 of jaw 56.

During the rotation of shaft S cams C and C, (l,A act alternately on their related rods 17 and 18 and actuate the yarnchangers or yarn carrying arms to move the guide ends of saidarms into and out of the yarn delivery positions. In cordination with the changing of the yarns the yarn engaging devices are operated to engage the respective yarns and carry -them to positions at which said yarns are cut and their ends are held from drawing back through the yarn guides. Thus the yarns which are out of the position to be ytaken by the needles instead of being iioated, are cut and the length of yarn ordinarilyl oated is saved. The subsequent operation of cutting out lall the floated yarns, after the knitting operatioi. being also avoided.

While I have hereinshown one embodiment of my invention it is not my intention thereby to limit `my invention to the particular mechanism herein shown and described.

Having thus described my invention claim as new and desire to secure by Letters Patent.

1. A knitting machine comprising in combination, a latch ring, a plate sustained within said latch ring and having a yarn engaging slot open at the periphery of said plate, a spring yarn engaging device hav-i ing a member extending transversely of said slot, a yarn carrier pivotally mounted on said plate to-engage a yarn in said slot, a yarn engaging device having a reciprocating yarn engaging hook, a pair of yarn severing devices adapted to coperate respectively with said `yarn carrier and vgitli said hook, a pair 0l: yarn guides inovtbly mounted to deliveryarn` means for operating said yarn guides in succession, and mechanism operated by said yarn guide operating means for actuating said yarn carrier and said hook and their respective yaiii severing devices relative to the operation of their related yarn guides.

2. A knitting machine comprising-a pivoted arm having a yarn guide adapted to deliver to the needles,y a plate mounted relative to the needles'and having a thread .receiving slot, a spring yarn engaging device having a member overlappingsaid slot,

4a carrier arm pivotally mounted on said plate, means foi-swinging said carrier arm across said slot, 'a pair of yarn engaging plates' pivotally mounted on said carrier arm, and means mounted on said plate and coperating with one of said yarn engaging plates to effect the swinging thereof.

ALBERT E. STEWART.

Witnesses AGNES CUNNINGHAM, M Anim J. DEVANNX. 

